2016 Fiscal Year Final Research Report

Research on Advanced SAR Observation with Small Satelli

Research Project

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Project/Area Number	26289327
Research Category	Grant-in-Aid for Scientific Research (B)
Allocation Type	Partial Multi-year Fund
Section	一般
Research Field	Aerospace engineering
Research Institution	Japan Aerospace EXploration Agency
Principal Investigator	Hirobumi Saito 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 教授 (80150051)
Co-Investigator(Kenkyū-buntansha)	福田盛介国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 准教授 (50332151) 竹内伸介国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 助教 (20353419) 冨木淳史国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 助教 (50455466) アクバルプリランド.R. 国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 研究員 (50724506) ニジュニクオレグ国立研究開発法人宇宙航空研究開発機構, 宇宙科学研究所, 研究員 (70631612)
Project Period (FY)	2014-04-01 – 2017-03-31
Keywords	合成開口レーダ / 小型衛星 / スロットアレイアンテナ / リモートセンシング / Ｘバンド
Outline of Final Research Achievements	We have performed researches on miniaturization of synthetic aperture radar (SAR) for 100kg-class small satellites. We selected as SAR antenna a deployable, honeycomb panel, slot array antenna that can be stowed compactly in a launching rocket. In order to perform polarimetric SAR observation, we have developed dual circular polarization panel antenna. RF output from six modules of GaN microwave power amplifiers are combined up to 1kW. We have developed a circular waveguide power combiner, inputs of which are microstrip line from the amplifier circuits. We design a 2-3Gbps high speed downlink for SAR radar data based on our previous research heritage of Hodoyoshi 4 (505Mbps downlink experiment in 2015, 64APSK). Based on these research results, this research group acquired the research fund “ImPACT” from the Cabinet Office in 2016.
Free Research Field	工学